Staff Test Engineer

Posted 6 Hours Ago
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Pathumthani, Pathum Thani, THA
In-Office
Senior level
3D Printing • Marketing Tech • Design
The Role
Develop and release automated test systems, strategies, processes, and tools for high-volume production of optical components. Analyze test data, troubleshoot root causes, improve yield, optimize test time and cost, and lead failure-analysis activities. Collaborate with R&D, test engineering, operations, and external suppliers to improve tester utilization, manufacturability, quality, and production scalability.
Summary Generated by Built In

It's fun to work in a company where people truly BELIEVE in what they're doing!
We're committed to bringing passion and customer focus to the business.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

We are looking for a self-motivated Staff Test Engineer. This position will be responsible for ensuring the testability and manufacturability of optical components such as lasers and ELS from the device feasibility stage through production ramp. Develops and debugs complex software programs and EDA tools for process and test equipment. Make significant contributions to design, development and validation of testability as well as evaluation, debug of complex test methodologies.

Creates and applies concepts for optimizing mass production relative to quality and cost constraints. Autonomously plans and schedules own daily tasks, develops solutions to problems utilizing formal education and judgment.


In this position you will:


  • Work with R&D, TE, and Operation teams and external suppliers to define and develop automated test systems for high volume production
  • Develop, implement, and release to factory test strategies, processes, and tools that meet the required speed, scale, cost and quality for optical components such as CW lasers and ELS
  • Perform statistical data analysis and trouble shoot potential root causes for yield enhancement
  • Identify and drive initiatives for test automation, process improvements, test time and cost reductions, and yield improvements
  • Lead troubleshooting and FA activities in close coordination with suppliers and Operation team so to exceed tester uptime/utilization targets
  • Some travel is required

Required Qualifications:

  • 7 years of experience in test engineering, automation, or software development in a hardware environment
  • BS or MS degree in electrical engineering, information, or other relevant major.
  • Strong programing fundamentals. We mainly work with external suppliers, but we also develop different applications for automation and analytics.
  • Hands-on experience with hardware (instruments, motion systems, fiber, cabling, signals) and the patience for troubleshooting and failure root cause analysis
  • Experienced and fully understand Gage R&R, correlation, test coverage and qualification
  • Able to interpret and analyze test result/data, correlating the test data with fab inline process for yield improvement. 
  • Good in problem-solving, troubleshooting, data analysis and data driven analytical mindset 
  • Strong ability to drive initiatives, to own the problem and the solution, and to drive actions and solutions across cross-functional teams.
  • Strong communication skills; adept at hosting effective meetings and facilitating actions and resolving conflicts.

Preferred Qualifications:

  • Experience in semiconductor lasers, like edge emitting laser, or Vertical Cavity Surface Emitting Laser (VCSEL) related device design, process development and characterization is preferred
  • Familiarity with photonics surmount, housing, semiconductor laser diodes, LEDs, photodetectors, driver ICs, and optical components (lenses, diffusers, DOEs).

We are an equal opportunity employer and value diversity at our company.

We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.

Please contact us to request accommodation.

Skills Required

  • Seven years of experience in test engineering, automation, or software development in a hardware environment
  • Bachelor’s or master’s degree in electrical engineering, information technology, or another relevant major
  • Strong programming fundamentals
  • Hands-on experience with hardware including instruments, motion systems, fiber, cabling, and signals
  • Experience with Gage R&R, correlation, test coverage, and qualification
  • Ability to interpret and analyze test results and correlate test data with fab inline processes for yield improvement
  • Problem-solving, troubleshooting, data analysis, and data-driven analytical skills
  • Ability to lead initiatives and drive solutions across cross-functional teams
  • Strong communication, meeting facilitation, conflict resolution, and action-management skills
  • Experience with semiconductor laser device design, process development, and characterization
  • Familiarity with photonics, semiconductor laser diodes, LEDs, photodetectors, driver ICs, lenses, diffusers, and DOEs

Lumentum Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lumentum and has not been reviewed or approved by Lumentum.

  • Equity Value & Accessibility — Equity is positioned as a meaningful part of total compensation, with RSUs frequently framed as a valued component of offers. An employee stock purchase plan with a discount and look-back further reinforces equity access as part of rewards.
  • Retirement Support — Retirement benefits are presented as a clear strength, with a 401(k) match and immediate vesting highlighted as supportive features. Auto-enrollment and match eligibility details indicate a structured retirement program for U.S. employees.
  • Healthcare Strength — Multiple medical plan options are described, including PPO and HDHP/HSA choices and Kaiser in some locations, suggesting breadth and choice in coverage. Health and well-being programming is also characterized as part of a comprehensive benefits approach.

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The Company
HQ: San Jose, CA
3,219 Employees

What We Do

Lumentum (NASDAQ: LITE) is a market-leading designer and manufacturer of innovative optical and photonic products enabling optical networking and laser applications worldwide. Lumentum optical components and subsystems are part of virtually every type of telecom, enterprise, and data center network. Lumentum lasers enable advanced manufacturing techniques and diverse applications including next-generation 3D sensing capabilities. Lumentum is headquartered in San Jose, California with R&D, manufacturing, and sales offices worldwide. For more information, visit www.lumentum.com.

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